1A-91 Engine General Information and Diagnosis:
DTC P0116: Engine Coolant Temperature Circuit Range / Performance
S5JB0A1104026
Wiring Diagram
DTC Detecting Condition and Trouble Area
8
Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Measure resistance between “C37-57” terminal of ECM
connector and vehicle body ground.
Is resistance below 3
Ω
?
“GRY/GRN” wire is
open circuit or high
resistance circuit. Poor
“C37-57” connection.
Faulty ECM ground
circuit. If circuit is OK,
substitute a known-
good ECM and recheck.
9
IAT sensor for performance check
1) Check IAT sensor according to “Mass Air Flow (MAF)
and Intake Air Temperature (IAT) Sensor Inspection: in
Section 1C”.
Is it in good condition?
Substitute a known-
good ECM and recheck.
Replace MAF and IAT
sensor.
Step
Action
Yes
No
C37-57
GRY/GRN
GRY/GRN
3
1
2
5V
C37-24
PPL/YEL
E23
C37
3
4
18
19
5
6
7
10
11
17
20
47
46
49
50
51
21
22
52
16
25
9
24
14
29
55
57
54 53
59
60
58
2
26
27
28
15
30
56
48
32
31
34
35
36
37
40
42
39 38
44
45
43
41
33
1
12
13
23
8
3
4
18
19
5
6
7
10
11
17
20
47
46
49
50
51
21
22
52
16
25
9
24
14
29
55
57
54 53
59
60
58
2
26
27
28
15
30
56
48
32
31
34
35
36
37
40
42
39 38
44
45
43
41
33
1
12
13
23
8
I5JB0A110038-01
1. ECT sensor
2. ECM
3. To other sensors
DTC detecting condition
Trouble area
ECT sensor values is less than –10
°
C, 14
°
F (for M16 engine)
or –5
°
C, 23
°
F (for J20 engine) while engine is running under
more than specified engine load (more than 1000 rpm) for 2 to
1116 min (depending on ECT at engine start) continuously from
engine start.
(2 driving cycle detecting logic)
• ECT sensor
• ECT sensor circuit
• Thermostat
• ECM
www.CarGarage.ir
www.CarGarage.ir
www.CarGarage.ir
